HM 169 Visualisation of seepage flows

GUNT HM 169

Visualization of Seepage Flows Unit is desgined for visualizing two-dimensional seepage flows and analyzing water pressure in various models. It features a closed water circuit with fluorescein as a contrast medium for enhanced flow visualization. The experimental section includes a tempered glass viewing window and a fine-mesh screen that separates the feed and discharge chambers. Water levels are adjustable via height-adjustable overflows. The unit uncludes 14 measuring connections with filters to monitor groundwater levels. Three models - sheet pile, retaining wall, and foundation - allow for the demonstration of streamlines and water pressure effects. Integrated instruments such as tube manometers and observation tubes provide precise measurement data.

Technical Data & Specifications:

Experimental Section:

• Usable volume: 82 L
• Dimensions (L × W × H): 1480 × 104 × 630 mm

Pump:

• Max. flow rate: 4 m³/h
• Max. head: 4 m

Storage Tanks:

• Contrast medium tank: 0.5 L
• Stainless steel storage tank: 96 L

Included Models:

• Sheet pile (visualization of streamlines)
• Retaining wall (demonstration of water pressure)
• Foundation (demonstration of water pressure)

Measuring Ranges:

• Pressure: 14 × 20–650 mmWC

Operating Conditions:

• 230V, 50Hz, 1 phase
• 230V, 60Hz, 1 phase
• 120V, 60Hz, 1 phase (UL/CSA optional)

Included Items:

• Experimental section with tempered glass viewing window
• Fine-mesh screen for feed/discharge separation
• Height-adjustable overflows for water level control
• 14 measuring connections with filters for groundwater level detection
• Three models: sheet pile, retaining wall, foundation
• Integrated measuring instruments (tube manometers, observation tubes)

Dimensions & Weight:

• Unit (L × W × H): 1900 × 800 × 1870 mm
• Weight: Approx. 230 kg

Required for Operation:

• Sand (1–2 mm grain size)